发明名称 CULTIVATION BOX FOR SHELLS
摘要 A multi-band receiver in which characteristics including a tracking error are improved is provided with a variable frequency oscillator circuit, a variable divider circuit (39) for dividing an oscillation signal (SVCO) of the variable frequency oscillator circuit, and mixer circuits (15I) and (15Q) for subjecting a received signal SRX to frequency conversion into an intermediate frequency signal (SIF) by a local oscillation signal (SLO). A divided output of the variable divider circuit (39) is supplied as the local oscillation signal (SLO) to each of the mixer circuits (15I) and (15Q). When a signal in a first frequency band is received, the division ratio n of the variable divider circuit (39) and the oscillation frequency of the variable frequency oscillator are changed to change the reception frequency in the first frequency band. When a signal in a second frequency band is received, at least the oscillation frequency of the variable frequency oscillator circuit is changed to change the reception frequency in the second frequency band. <IMAGE>
申请公布号 KR20030020452(A) 申请公布日期 2003.03.08
申请号 KR20037001772 申请日期 2003.02.07
申请人 发明人
分类号 H03L7/18;H04B1/26;H04B1/28;H04B1/40 主分类号 H03L7/18
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